Device for fitting caps upon safety-pin shanes



Jan. 9, 1923,

H. PRYM.

DEVICE FOR FITTING CAPS UPON SAFETY PIN SHANKS.

FILED JUNE 3,1921.

11 lllrlnilnv Application filed Zl'une ments in Device for hitting Capsllpon.

tlafety-lf in Shanks of which the thallowing is a s'g'iecilica'tion.

The present invention relates to an apparatus for mounting and fasteningthe heads of safety pins on the shanks thereof. in. apparatus hithertoused. the head in being carried to the preliminarily bent shunlr isloosely positioned and thus can not always be fastened in the desiredposition on the shank, thereby resulting in interruption to operationand a product which. is not uniform.

This defect is completely overcome by the present invention in that theindividual heads, on passing); out of a guide. are taken up by arotatable element which carries them into the vicinity of pin shank,this element being so constructed that the. heads can not move fromtheir position with respect to the element during the movement. 7 Twoexemplary embodiments of the subject of the invention are shown on thedrawing", in which:

Fig. 1 is a longitudinal section through one embodiment with rotatableroller in position for the reception of the heads;

lilo; 2 is a plan view thereof;

Fo 3 is a longitudinal section w th the rol' inv position afterfastenmp; the head.

lfir u 42: is an enlarged. fragmentary section view Oil the secondembodiment.

Referring now more particularly to the drawi' gs in which siniilarfeference characters indicate corresponding parts there is provided'arotatable roller n which is subjoct to the action of draft or tractionspring 1 This roller has an angular projection y, 011 which the pinshank d is bent. Below the roller is a slide a which is movedreciprocally preferably by means of lever n and in its movement towardthe right rotates the roller so that it assumes the position of Fig. 1,while on its movement to the left it releases the roller, so that theroller will be turned back by the action of the. spring); 7 for adistance of 90 (Fig. The roller 12, is journaled in one end of a slide91h which at its other end carries a roller a against which a lug or rumn is applied. Ply means of the hu he slide 1/ 1521. Serial 1J0. Eldildo.

with the roller a is moved to the right and then pulled back by a springa. A pre sure member s is journaled ii]. the roller u and a pressurebolt t is employed for pressing member s on the head 70. Journaled inthe slide n is another slide o which carries a resiliently mountedmandrel n such mounting being preferably effected by means of a spring0%. This mandrel i) serves for forcing out a jammed head, if the latteris not attached when a pin shank is out of alignment. Slide o isreciprocated by means of a lever o (Z represents a pin support and (Z aroller which carries the pin shanlr (Z into the operative position.

'lllhis apparatus operates as follows:

in the position of Fig, 1 the roller n successively receives the heads7c delivered from the guide trough o The slide or is now moved to theleft by means of the lever n whereby the roller n is released, androtated outwardly and downwardly to the extent of 90 under the action ofthe spring 3 to the position shown in Fig. At the some time the slide ais moved to the left the slide 71 and roller a are moved to the right.During; this movement of the roller n the head it positioned in theroller it receives the prep liminarily bent shank (Z of the safety pin(Fig. 3). By means: of the pressure members axially journaled in theroller 71, through the pressure bolt t which may be actuated desired, apowerful pressure is snorted on the heads 76, whereby these are securelyfastened on the shank d.

lilimu tanoously with the movei'nei'it of the slide a to the i ght theslide n is also moved to the right by means of the lever r whereby thennlndrel o subject to the action T he s iring '0, is p .ed into theopening a; of the roller w and strikes the head, whereby the spring o iscompressed. If the head is properly mounted on the pin shank the mandrelo has no further action herein. If, however the pin shank has not beenaligned with the heath which prevents the head from being: securedthereto, the striking of the head by the mandrel effects an ejection ofthe head from the roller.

After the heading operation the slide o with the mandrel "U are returnedby means of the lever 49 At the same time the slide '12 and the finishedv pins are released. Simul' rwisiy with the return movement of the slide1/, the slide 02 is moved forward by roller a are drawn back, and themeans of the lever a, and the roller 7 is rcturned to its initialposition for the reception of a new head, Fig. 1. in this position. anew pin shank (Z is bent on the soecially formed projection 7 said shanka? being carried into position by the roller A tool g (Fig. 1) isadapted to be pressed on the shank to bend it at right anglescorresponding to the form of the projection or lug, wherein the slide itserves as a support tor the lug.

After the bending of the shank the pin support (Z is moved upwardly tosupport the bent pin until termination of the head ing operation (Fig.and then is drawn downwardly Fig.

Omitting the lug 9 of the roller a the shank 5Z may be bent by arotatable round. member n which is independent oil? the roller 17 (Fig.4). This member has a por tion of semi-circular cross section servingfor bending the pin, the flat side of which is directed upwardly. Theshank (Z is inserted on the member n and then a vertically reciprocalpunch attached to the machine shaft, is pressed thereagainst so that, asshown on Fig. al, the front edge q of the punch comes into positionlaterally of the rotational axis or the member @4 approximately thethickness of the pin shank and does not interfere with the rotation ofsaid member. The member n is then turned in the direction of the arrowfor so that point Z comes into position in point Z Thereby the free endof the shank (Z is bent, since the punch Q11, which serves as a supportfor the pin shank, prevents raising thereof. After the bending operationpunch 9 again passes upwardly, and the member n is again drawn to theside and the roller n rotated to be shoved on the shank.

Having thus fully described the invention what is claimed and desired tobe secured by Letters Patent is:

l. Apparatus for mounting and fastening' the heads of safety pins on thepin shanks, including in combination, a stationary guide for the headsoil the pins, asupport or the shanks or the pins, and a rotatably andslidably mounted element for successively receiving and rigidlysupporting the heads and for carrying them towards the shank support sothat theymay be successively delivered.

2. Apparatus for mounting and fastening the heads of sa'let'v pins onthe shanks thereof, including in combination, a guide for the heads ofpins, a support for the shanks oi pins and a rolatahly and slidahlymounted roller having means 'lorined thcrcin for successivelyi'cccivingr pin heads from the guide so as to rigidly support the sameso that the 1 *ads may he successively dc livered on a pin shank on theshank supporl,

3. Apparatus as claimed in claim 1, wherein the element consists ol :1rollcr provided with a head receiving scat cxlicndinp radially from thelongitudinal axis thereof.

4-. Apparatus in accordance with claim 1 wherein means is iu'oridcd forthe instcninr oi the head on the shank including a compres ion clementjournailcd axially in the rot I and slidably mounted clcmcni.

An apparatus in accordance with claim I wherein a spring :mtualcdmandrel is di rccted radially against the eh-mcnt l'or forcing anunattached head from the clemcm.

6. -ipiniratms in accordance with claim I wherein the element consistsoil :1 rollcr haring a head receiving scat wherein the means formounting the same consists of a slidc in which the roller is journalled,another v lidc mounted in the first mentioned slide and :l resilientlymounted cjccting mandrel in lhc second slide.

7. Apparatus in accordance with claim l wherein the element is providedwith an angular projection upon which a pin shank is adapted to be bout.

8. Apparatus for mounting and fastening the heads of sa'l cty pins onthe shanks of said pins, including in combination, a slationary uide forthe heads oi the pins, a support tor the shanks of the pins, :1 1n:1nually operable slide, :1 rcciprocatable spring controlled slide mountedon the manually operable slide, a roller journallcd in the lastmentioned slide and provided with a head lGCGli'lliQ' seat, resilientmeans in connection with the roller for partially rotating the rollerupon operation 01 the slide so that a pin head rcccircd 'l'rom the guidewill he carried toward. the shank. a compression clc nicnt journallcdaxially in i'hc rolh-r for an plying the head in a. pin shank. a thirdmanually operable slide mounted in the roller cui'i' ,'iii;5 slide and aspringprcsscd head and rejecting mandrel, mounted in the last mentionedslide. substantially as and for the pillpOSOS set forth.

in testimony whereof .l hereunto ullix mr signature in prcsencc of twowitnesses. i

llA N S Ph Y M.

lVilnesses .loimnx FRINZS. W] LHELM Jan i A NN.

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